3.7V Rechargeable Heated Socks Kit

No more cold feet. This Merino wool and polyester blend construction wicks away moisture and warms toes with the most unobtrusive carbon fiber heating element and wire system available. Features two heat settings that warms toes for up to 6 hours.The medium weight sock balances warmth and comfort perfectly without sacrificing room for movement in your footwear. A snug fit tightly houses the compact, lightweight rechargeable battery pack at the top of the calf to prevent unwanted slippage, allowing you to stay warm and worry free.